British Railways Board (addnl): agreements, petitions, briefs and memoranda of the North Metropolitan Railway, Metropolitan District Railway and Metropolitan and Thames Valley Railway 1853-1926 (B00/120)

Lamb & Holmes, solicitors, Kettering (addnl): records and client papers, incl estate papers and family corresp of the Brookes family of Great Oakley 19th-20th cent, and policy registers of the County Fire Office insurance agency